feat: first draft for tomo rotation base class

ophyd_devices/epics/devices/epics_motor_tomo_rotation.py

@@ -0,0 +1,112 @@
+""" Class for EpicsMotorRecord stages for tomography purposes"""
+
+from ophyd import EpicsMotor
+from ophyd import Component
+from ophyd_devices.utils import bec_utils
+from abc import ABC, abstractmethod
+
+class TomoRotation(ABC):
+
+    def __init__(*args, parent=None, **kwargs):
+        self.parent._has_mod360 = False
+        self.parent._has_freerun = False
+
+    def apply_mod360(self)->None:
+        """to be overriden by children"""
+        pass
+    
+
+class EpicsMotorTomoRotationError(Exception):
+    """Error specific for EpicsMotorTomoRotation"""
+
+class TomoRotationEpics(TomoRotation):
+
+    def __init__(*args, parent=None, **kwargs):
+        super().__init__(*args, parent=parent, **kwargs)
+        self.parent._has_mod360 = False
+        self.parent._has_freerun = False
+
+
+    def apply_mod360(self)->None:
+        """tbd"""
+        if self.has_mod360 and self.allow_mod360.get():
+            cur_val = self.user_readback.get()
+            new_val = cur_val %360
+            try:
+                self.set_current_position(new_val)
+            except Exception as exc:
+                raise(exc)
+
+    # def get_valid_rotation_modes(self) -> None:
+        
+
+
+class EpicsMotorTomoRotation(EpicsMotor):
+
+    allow_mod360 = Component(
+        bec_utils.ConfigSignal,
+        name="allow_mod360",
+        kind="config",
+        config_storage_name="tomo_config",
+    )
+
+    USER_ACCESS = ["apply_mod360"]
+
+    custom_prepare_cls = TomoRotationEpics
+
+    def __init__(self, name:str, prefix:str, *args, tomo_rotation_config:dict=None, **kwargs):
+
+        super().__init__(name=name, prefix=prefix, *args, **kwargs)
+        self.tomo_config={'allow_mod360' : False}
+        self._has_mod360 = None
+        self._has_freerun = None
+
+        #To be discussed what is the appropriate way
+        [self.tomo_config.update({key : value}) for key,value in tomo_rotation_config.items() if tomo_rotation_config ]
+
+        self.custom_prepare = self.custom_prepare_cls(parent=self)
+        
+    @property
+    def has_mod360(self) -> bool:
+        """tbd"""
+        return self._has_mod360
+
+    @has_mod360.setter
+    def has_mod360(self):
+        raise(f'ReadOnly Property of {self.name}')
+
+    @property
+    def has_freerun(self) -> bool:
+        return self._has_freerun
+
+    @has_freerun.setter
+    def has_freerun(self):
+        raise(f'ReadOnly Property of {self.name}')
+
+    @abstractmethod
+    def apply_mod360(self):
+        """to be implemented"""
+
+    def apply_mod360(self):
+        self.custom_prepare.apply_mod360()
+
+    # def get_valid_rotation_modes(self):
+    #     return self.custom_prepare.get_valid_rotation_modes(self)
+
+
+
+        
+
+
+
+
+
+
+    
+
+    
+
+
+
+
+